DVTel NetTalk by DeanSampson

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									   DVTel’s NetTalk Advanced Intercom Solution
   Voice over IP Intercom Interface Box


 D         VTel’s Latitude Network Video Management System (NVMS)™
           is a multimedia management software and is not limited to video
           recording and monitoring only. The audio support of the Latitude
 NVMS provides the ability to monitor, record and communicate with
 audio call boxes attached to video encoders or decoders. The Latitude
 NVMS combined with the NetTalk Remote Intercom Interface (RII) be-
 comes an Intercom Master Station. A variety of commercially available
 call stations can be interfaces with NetTalk for maximum system flexibil-
 ity. Latitude provides full control of the audio system including push to
 talk and listen functions and can provide a full system response to a re-
 mote call button action. In addition to the Latitude’s full audio controls,
 push-to-talk and listen can be accessed from the Latitude CCTV Key-                                                                   •      Variety of Intercom solutions to work with
 board.                                                                                                                                       DVTel’s encoder series
 The RII allows a variety of intercom speaker stations to communicate with
 DVTel’s line of audio enabled encoders and decoders with the Latitude                                                                 •      Allows intercoms to work over the network
 NVMS audio option. All audio enabled 7500, 7600, 8500 and 8600 series
 of encoders and the 7500 series of decoders including the 9440, 9540 and                                                              •      Automatic operation
 9840 series of IP cameras.
                                                                                                                                       •      Automatic Level Control (ALC) for maximum
 The NetTalk RII with its unique Automatic Level Control (ALC) cir-
 cuitry, balances inbound and outbound audio levels for a full compatibility                                                                  voice clarity
 with the DVTel audio encoders, decoders, IP Cameras and the Latitude
 NVMS software. When receiving the audio signal, it converts to 0dB level                                                              •      Robust 5W Audio amplification handles multi-
 from the station. When transmitting the audio signal, it converts the low                                                                    ple speakers and low impedance loads
 microphone level (-40dB typical) from the speaker/mic to a 0dB level at
 600 ohms for transmission of the network.
                                                                                                                                       •      Supports 4 to 50 ohm and 25V systems
 DVTel’s NetTalk RII is designed to be installed at the remote speaker
 station and requires 24 VAC power source to operate. A 12 VDC output is                                                               •      Audio talk listen control with Latitude GUI
 available to power a single channel encoder/decoder. Rack mount options                                                                      and maps
 are also available.
                                                                                                                                       •      ADA LED support on a Latitude NVMS
                Single port Encoder and NetTalk RII box
                                                                                                                                       •      Remote door release or speaker selection

                                                                                                                                       •      Short circuit and thermal overload protected

                                                                                                                                       •      Multi-speaker drive capability

                                                                                                                                       •      Factory calibrated—no field adjustments re-
                                                                                                                                              quired under normal circumstances

                                                                                                                                       •      Two wire to four wire conversion

                                                                                                                                       •      24 VAC operation

                                                                                                                                       •      12 VDC output to operate a single port DVTel
                                                                      Please note that other Encoders and call boxes                          encoder
                                                                      may require additional wiring, components
                                                                      and/or software.
                                                                      Multi-port Encoders supports single Bi-
                                                                      Directional Audio in/out pair. If multiple audio
                                                                      in/out are required for multiple cameras addi-
                                                                      tional audio enabled Encoders will have to be
                                                                      installed in the system
CSKBD-C, May 2006                   www.dvtel.com
DVTel, iSOC, Latitude, Longitude, Altitude, SceneTracker, CaseBuilder, and Mentor are registered trademark of DVTel Inc. all other company names and product s are trademark or registered trademarks of their respective companies.
DVTel’s NetTalk Advanced Intercom Solution
Voice over IP Intercom Interface Box

NetTalk Intercom Speaker Station - Rugged cast aluminum baffle that has
an extremely high resistance to corrosion and heavy impact. It offers superb
sound quality and a very stylish appearance. By changing the speaker con-
figuration, two different versions are available. The Intercom Speaker Sta-
tion Indoor uses a standard cone speaker with a stainless steel perforated
speaker grill. The Intercom Speaker Station Outdoor uses a waterproof cone
speaker that can withstand extremes in heat, dust and weather. A stainless
steel fine mesh screen is attached to the front of the perforated speaker grill
to reduce water and dirt build-up inside the speaker station. The rugged cast
aluminum push button has been designed for high visibility and easy, trouble free operation. It has been
engineered to activate a call when just 2 lbs (.9 Kg) of pressure is applied anywhere on its front surface.
Tamper proof screws are supplied for securely mounting the speaker
station, and several options are available. These options include: 25 Volt Line Transformers, LED display
indicators, and a variety of speaker impedances

Features: Rugged Cast Aluminum, Stylish appearance, high quality speaker/microphone, Standard 3 Gang
Size, Superb sound quality, LED display Option is also available.

NetTalk Vandal Proof Speaker Stations are constructed entirely of stainless steel and were designed
specifically for security applications. These rugged speaker stations have a smooth, clean appearance, but
can handle abusive environments. The 2 ½” speaker used in this series, has a special Sealed Linear Design
protecting the speaker from ferrous and no-ferrous particles. With a wide operating temperature range and
resistance to water, this station still provides outstanding audio performance. An offset, perforated 14
gauge stainless steel grill plate further protects the speaker from liquids, open flame and physical abuse.

The call button is made entirely out of stainless steel. A stop between the button cap and the flanged switch
body protects the replaceable switch from being damaged. This design permits the switch assemble to be
taken apart for service and cleaning as needed.

Features: All Stainless Steel Construction, 11 Gauge Faceplate, Waterproof Speaker/Microphone Resists
Damage by Abuse, Flame and Liquid, Rugged All Stainless Steel Button, Superb Audio Clarity, 45 ohm or
25 Volt Operation, Other Configurations Available 2 or 3 Gang models 2 Gang Box Shown.

NetTalk Re-Entrant Horn Speaker is used where noise penetration and clear speech intelligibility is re-
quired in one or two way communication systems. A special diffuser suppresses on-axis hot spots and im-
proves dispersion.

The Re-entrant horn speaker is conservatively rated at 16 watts continuous duty. It’s powerful compression
drivers steel parts are plated to meet a 96 hour salt spray test. The construction is weather and corrosion
resistant using stainless steel fasteners and engineering grade UV resistant thermoplastics.

The mounting system is designed for easy assembly and adjustment. Power adjustments are done with a
color coded 5 conductor cable.

Features: Designed for noise penetration and speech clarity; Excellent sensitivity as a microphone in two-
way systems; Weather and corrosion resistant construction using stainless steel fasteners and UV resistant
thermoplastics; Conservatively rated at 16 Watts continuous duty; Diffuser suppresses on-axis hot spots.
Please note that other Encoders and call boxed may require additional wiring, components and/or software.
Multi-port Encoders supports single Bi- Directional Audio in/out pair. If multiple audio in/out are required for
multiple cameras additional audio enabled Encoders will have to be installed in the system




                                                                                                                   Specification sheet is subject to change without notice
DVTel HQ- 65 Challenger Road, Ridgefield Park, NJ 07660 · Tel: 201.368.9700
DVTel EMEA - 7 Lancaster Court · Coronation Road · High Wycombe · HP12 3TD · Tel: +44 (0) 870.240.0716                                           www.dvtel.com
DVTel’s NetTalk Advanced Intercom Solution
Voice over IP Intercom Interface Box

Intercom Speakers Specifications
Net Talk Intercom Speaker Station
Size/Shape:           3” Square

Magnet:               2.5 oz. Ceramic

Continuous Power      5 watts
Peak Power:           10 Watts

Mounting Diameter:    3 3/8”
Depth                 1 7/32”
Impedance:            45 Ohms (25 Volt transformers are also available)
                                                                                           RII Specifications
Frequency Response: 260Hz to 8 kHz (Standard)
                    400Hz to 4.5 kHz (waterproof)                                          NetTalk Remote Intercom Interface
                                                                                           Output to Encoder         -20 dBm to 0 dBm across 600 ohms
Output sensitivity:   87dB (above .0002 Dynes/CM2)
                                                                                           Input from Encoder        -30 dBm to +22 dBm for full output
Construction:         Cast Aluminum
                                                                                           ALC Circuitry             52dB change in input results in no more than a 2dB change in output.
Finish:               Black Anodize with Silver Trim                                                                 Compression starts at 30 dBm @ mixing point
                                                                                                                     Fast attack, slow release action
Dimensions:           6 1/2” x 4 9/16” x 1/2” D
                      Fits a Standard 3 gang electrical box                                Frequency Response        Optimized for maximum voice clarity
Net Talk Vandal Proof Speaker Stations                                                     Speaker Impedance         4-50 ohms and 25V systems—compatible with most Intercom call stations
Speaker Size           2 1/2 Square                                                        Power Requirements        24 VAC input @ 50ma idle; 275ma continuous maximum

Impedance              45 ohm or 8 ohm with 25 Volt 2 Watt Line Transformer                Controls                  TX—TRANSMIT (TX level) -20 to 0dB
                                                                                                                     RX—RECEIVE (RX level) 0 to maximum audio power
Power:                 6 Watts RMS; 12 Watts Program
                                                                                           Connections               12 pin screw terminal connection
Frequency Response     350Hz to 4.5 kHz
                                                                                           Distance Capabilities     Up to 1500 feet from speaker—door control
Sensitivity            87dB (above .0002 Dynes/CM2)
                                                                                           Audio Power Output        5W @ 4 ohms
Environmental          -55C to +85; Total immersion in water for 96 hours without degra-
                       dation                                                              Dimensions                4 1/4” w x 6 1/4” h x 3” d

Call Button            All stainless steal housing; 1 Amp @ 25 VAC or 28 VDC;
                       250,000 cycles at full rating
                                                                                           System Components
Dimensions             2-Gang: 4 1/2” w 4 1/2”h 1 3/8”d (2 5/8” d w/Transformer).
                       3-Gang: 6 3/8” w 4 1/2”h 1 3/8”d (2 5/8” d w/Transformer).          Remote Intercom Interface

                                                                                           DVT-NTK-RII             Remote Intercom Interface (RII) for NetTalk product line
Material               11 gauge SS front panel w/14 gauge SS baffle plate; matte finish
                                                                                           Intercom Speakers (Requires DVT-NTK-RII)
Weight                 2 Gang box: 1 1/2 lb; 1 3/4lbs w/transformer
                       3 Gang box: 1 3/4 lb; 2 lbs w/ transformer                          DVT-NTK-ISS-10          Speaker Station—Outdoor

Net Talk Re-Entrant Horn Stations                                                          DVT-NTK-ISS-10-L        Speaker Station—LED—Outdoor

Power Handling:        16 Watts Continuous Duty                                            DVT-NT-VAN-1            Vandal Proof Speaker Station (2-Gang Box)

Frequency Range:       600 - 5600 Hz, (+3 Db), 400 - 6800 hZ (+6 dB)                       DVT-NT-VAN-2            Vandal Proof Speaker Station (3-Gang Box)

Sound Pressure         1 Watt 500—5000Hz, averaged; 109 dB; 1 Watt, 1 Octave at 2          DVT-NT-VAN-3            Vandal Proof Speaker Station (2-Gang Box) no button
Level:                 kHz, averaged; 110.7dB; 16 Watts, 1 octave 2 kHz, average; 122
                                                                                           DVT-NT-VAN-CB           Vandal Proof Call Button Only
                       dB
                                                                                           -25                     25 Volt version of the above intercom speakers. Add –25 to the end of the part
Talk-Back Sensitiv-    Referenced 94 dB (1.0 Pa) SPL, 700—2000 Hz; 47.4 + 2mV or—
                                                                                                                   number
ity:                   13 dBm (0 dBm +mv)
                                                                                           DVT-NTK-HRN-2           Re-Entrant Horn Speaker
Materials:             Impact and UV resistant ABS Horn and Cover. High Stability, UV
                       resistant polycarbonate for driver and mounting components.         NetTalk with AiPhone Interface
                       Stainless steal fasteners.
                                                                                           DVT-NTK-RII-01          Remote intercom interface (RII) with AiPhone Support for the following models:
Driver:                Compression type, integral with horn. Replaceable phenolic                                  LE-D: Surface Mount Door Station
                       diaphragm driven by high head rated voice coil.                                             Vandal Resistant Sub Stations:
                       Magnet is Strontium Ferrite.                                                                LE-SS: Stainless Steel 2-Gang Sub Station
                                                                                                                   LE-SSR: Stainless Steel 2-Gang Substation with red mushroom push button
Color:                 Tan with brown diffuser/inner horn
                                                                                                                   LE-SS-GP: Gold Plated 2-Gang Sub Station
Wiring:                5 conductor black jacketed 30” long cable

Power Taps:            16, 8, 4 & 2 Watts                                                                          Call DVTel application engineering for other models or applications

								
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